Fig. 39 Insulation monitoring - 230 V, 3-phase generator
1
«Main switch»
2
«Mode selector switch»
3
Test button with
earth-leak warning lamp for
«insulation monitoring»
4
«Overload protection» switch functioning as
safety cut-out with overcurrent release;
«mains contactor»
5
Three-phase power sockets
6
Single-phase power sockets
1. Put the machine into operation.
DANGER
There is danger of fatal injury caused by contact with live components.
➤ The generator may only be used if the overload protection switch tripped during the test.
2. Check the insulation monitor according to instructions.
Checking instructions are given on the label stuck on the generator control box.
DANGER!
Electrical power.
There is danger of fatal injury caused by contact with live components.
▶ Test the mains contactor each day while the machine is running.
▶ The generator may only be operated if the mains contactor is functioning correctly.
Checking the mains contactor
➤ «Mains contactor»
4
for generator switching.
➤ Press and hold the «test button»
3
for 3 seconds.
The «mains contactor»
4
trips out.
Problem: The «mains contactor» does not trip out?
➤ Shut down the generator and call KAESER Service.
Tab. 64 Test instructions for a generator with an insulation monitoring
7
Initial Start-up
7.10 Putting the generator into operation
74
Service Manual Screw Compressor
M135 SIGMA CONTROL MOBIL
No.: 9_6975 00 E
